| John Prohira's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2008 | New York, US | 54 | Friday, July 11, 2008 | DNF |
| Hardrock 100 2007 | New York, US | 53 | Friday, July 13, 2007 | 46:49:38.00 |
| John Prohira's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2008 | New York, US | 54 | Friday, July 11, 2008 | DNF |
| Hardrock 100 2007 | New York, US | 53 | Friday, July 13, 2007 | 46:49:38.00 |